Rock crusher



A. D. HADSEL ROCK CRUSHER Filed Oct. 19, 1922 2 Sheets-Sheet 1 a a i 2%mam 7'41? flax/awe 41 Z A. D. HADSEL ROCK CRUSHER April 7, 1925.1,532,742

Filed Oct. 19, 1922 2 Sheets-Sheet 2 t & central passage with strips 17Patented Apr. 7, 1925.

un rsu STATES nnvan n. mnsnn,

OF SAN FRANCISCO, CALIFORNIA, ASSIGNOB OF ONE-HALF 1'0 FREDERICK N.WOODS, SIB", OF SAN FRANCISCO, CALIFORNIA.

nocx cnusnm Application fled October 19, 1922. Serial No. 595,645.

To all whom it may concern:

Beit known that I, ALVAB: D. HADSEL, a citizen of theUnit/ed States, anda resident of San Francisco, county of San Francisco,

corrugated concave whereby the rock is I broken up.

The preferred forms of my rock crusher are shown in theaccompanyingdrawings in which Figure 1 represents a vertical sectionthrough my rock crusher taken along line 1-1 of Figure 2, Figure 2 ahorizontal I cross section taken along line 2-2 of Figure 1, Figure 3 ahorizontal cross section through a modified form taken. along line 3-3of Figure 4 and 'Fi 4 a vertical section through said modi ed form.While I have shown only the preferred form of the invention it should beunderstood that various changes or modifications may be made within thescope of the claims hereto at- 80 tached without departing from thespirit of the invention.

Referring to the forms illustrated in Figures 1 and 2 it will be seenthat my rock crusher rests on a frame (1) made inc-any 85 suitable"manner which supports the receptacle .(2), conical in its lower portionand c lindrical in its enlarged upper portion. 5} rough the frameextends a vertical shaft (3) resting on the thrust bearing (4), thelower race (6) of which is sup rted on the hub (T) of a spider (8) provied in the oil reservoir (9). A s cond bearing (11) serves to support theupper end of the shaft. A rotor (12) is keyed to the uppe the shaft. Itmay be of any suitable construction and is shown in the drawing ascomprising abottom plate (13) a top plate 7 (14)]and two channel irons(16) connectin ,the' same so as to form a sli htly curv I remforcin the.upper member. The n per plate (14 is rovided with a central opening (18)wit which communicates the spout (19) of a hopper ('21). In the upperenlarged porthe corrugated r end of tion of the receptacle (2) I providea corrugated concave (22), the corrugations preferably formed in such amanner that rocks discharged from the rotor strike the con' cavesubstantially at right angles. The shaft may be rotated in any suitablemanner as for instance by means of a. belt (23) engaging a pulley (24)secured to the shaft.

The operation of this device should be readily understood from theforegoing description. Rock is fed into the hopper by any suitable meansand delivered by the same to the rotor (12) centrifugal power at theperiphery of the rotor and thrown violently against the corrugatedconcave (22). After striking the concave and being crushed thereby therocks drop through-the conical receptacle (2) on the inclined plate (26)which delivers them to any suitable receptacle through the outlet 27 The modified forms shown in Figures 3 and 4 work substantially on thesame principle but involve a somewhat diifere-nt arrangement. In thismodification the vertical shaft (31) supporting the rotor (32) andsupported in the thrush bearing (33) provided in the frame (34) isdriven by means of an electric motor (36) provided on top of the frame(34). Pillars (37) form the base for the frame (34) and for the concave(38) and the rock is delivered into the central portion of the rotorthrough the pipe (39) and drops after having struck concave into theconical receptacle (41). This modification is slightly inferior to theforms shown in Figures 1 and 2 in so far as the shaft (31) extends intothe rotor and into the intake passage (39) which interferes to someextent with the motion of the rock. It presents an advantage however, inthe direct drive for the shaft.

I claim:

1. In a centrifugal rock crusher, a rotor adapted'for receiving therocks centrally and discharging them peripherally, said rotor comprisinga securing to a shaft, a centrall perforated disk axiallyaligned withthe liubb'ed disk,

and a pair of similar spacing members between the disks extendingentirely across the disks spaced from the central portion thereof andsecured to both disks.

It is discharged by hubbed disk adapted for 2. In a centrifugal rockcrusher, a rotor between the disks extending across the disks adaptedfor receiving the rocks centrally spaced from the central portionthereof and and discharging them peripherally, said secured to both,said spacing members being 1 rotor comprising a hubbed disk adapted foroppositely curved along their working faces 5 securing to 'a shaft, a,centrally perforated substantially as shown.

disk axially aligned with the hubbed disk, and a pair only of similarspacing members ALVAH D. HADSEL.

